The RobotGeek Voltage Divider is a simple yet effective way to turn a variable resistor, such as an FSRs, Softpots, or Pressure Sensors into a tunable 0-5v analog signal.
The design is super simple and completely open source, but saves tinkerers from having to breadboard a potentiometer of their own. A 2 position terminal block and 0.1" spaced header are available for sensor input, a 3 pos right angle header breaks out Analog output, 5v input, and Gnd.

Each sensor includes necessary hardware to mount to any RobotGeek product (Workbench, Geekbot, etc.) as well as a RobotGeek 3-pin sensor cable.